Some newer Foundation reports include an indicator dubbed "Threat Level". This allows one to estimate the level of danger a specific SCP object poses should that object breach containment.
ATTENTION: This is a reminder to all personnel that this classification system is strictly complementary to the classifications already in use.
There are 7 levels, each represented by a colour:
The object is beneficial to the Foundation and its use strictly regulated, as detailed in the object's special containment procedures. Often assigned to Safe class objects.
The object may be beneficial, but its workings are poorly understood or remain unknown. This applies to items with undefined properties or to entities that react differently to different individuals. Often assigned to Safe and Euclid class objects.
This object is not beneficial, but neither is it harmful as long as it is handled correctly. Often assigned to Safe and Euclid class objects.
The object is harmful but easy to recontain. This may indicate that it can quickly be brought under control as long as certain, easily achievable conditions are met. May be assigned to either Safe, Euclid or even Keter class objects.
The object is unpredictable, exhibiting dangerous properties and is difficult to recontain. It is generally the lowest level assigned to humanoid entities. Often assigned to Euclid and Keter class objects.
The object is highly unpredictable and possesses considerable destructive capabilities. A containment breach may escalate into a K-Class scenario and its recontainment is to be considered a high priority. Often assigned to Euclid and Keter class objects.
The object possesses the capacity for destruction on a global scale. Moreover, containment breaches by such objects are to be considered synonymous with an XK-Class scenario and its recontainment and/or neutralization is to be considered top priority. It is chiefly assigned to Keter class objects.
IMPORTANT: Note that if an object has the tendency to change its behaviour under circumstances not yet identified, it may be assigned a secondary threat level.
If the threat level has yet to be assigned, the proper term is: Undetermined
Example: If your object is a pebble that causes the explosion of the known universe iff it gets headbutted by a one-legged saxophonist clad in a pink tutu made of 100% cotton… and it's fairly unknown, it will receive the designation Black and Safe. Safe because of the sheer unlikelihood of a containment breach ever occurring in the first place (even if it can't be absolutely zero), and Black because it has enough destructive capacity to invariably cause an XK-Class scenario.
Conversely, a humanoid who sticks their tongue out and can teleport at will by telling bad jokes becomes Euclid and Orange.